LB11921T driver equivalent, three-phase brushless motor driver.
can control the motor speed arbitrarily by varying the external clock frequency.
Functions
* Direct PWM drive outpu.
Start/stop control Low: 0V to 1.0V High: 2.0V to VCC Goes high when left open. Low for start. The hysteresis is about 0.22V
VCC
Equivalent Circuit
50kΩ
3.5kΩ
1
2 CLK External clock signal input Low: 0V to 1.0V High: 2.0V to VCC Goes high when l.
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